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(No Model.)

2 SheetsSheet 1.

J. DEMAREST. GISTERN FOR WATER GLOSET$.

No. 269,921. Patented Jan. 2, 18.83.

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(No Model.) 2 Sheets-Sheet :2.

J. DEMAREST.

OISTERN FOR WATER OLOSBTS.

N0. 26'9;9Z1. Patented Jan. 2, 1883 M PETEBSV Pbowlilhngmpbw, Wnhingmn0.6,

IIITED STATES PATENT @rrrcn.

JOHN DEMAREST, OF NEW YORIQJN. Y.

CISTERN FOR WATER-CLOSETS.

SPECIFICATION forming part of Letters Patent No. 269,921, dated January2, 183.

Application filed August 21, 1882. (No model.)

To all whom'it may concern: I

Be it known that LJomv DEMAREST, ofthe city and State of New York, haveinvented an Improvement in Gisterns for Water-Closets, of which thefollowing is a specification.

In Letters Patent No. 260,952, granted to me, a cistern is shown with apipe leading to the water-closet and a valve seat atthe upper 0nd ofsaid pipe and within the cistern, and a valve at the lower end of a tubethatis guided by a ring and held up when lifted by the action of a floatand lever, the valve dropping when sufficient water has run from thecistern to allow the float to descend and liberate the tube and valve.

My present invention is for producing a preliminary and after wash tothe closet by combining with the cistern two of said valves andarranging them in such a manner that one valve is open as thewater-closet seat or platform is depressed, and thereby producing apreliminary wash, and it closes automatically as the water descends to apredetermined level. Theother valve is opened when the watercloset seator platform rises and the water flows until the valve closesautomatically, washing or flushing the closet.

In the drawings, Figure 1 is a plan view of the cistern and valves.Fig.2 is a vertical section at the line (rm, and Fig.3is a detached viewof part of the valve-tube and float.

The cistern a, pipe (I, leading to the watercloset, valve-seats e,valves 6, tubes f, ringguides m, standards 6, levers a, and floats r aresubstantially the same as shown in the aforesaid patent, to which areference is hereby expressly made. I have, however, improved upon thesame by providing a neck, 3, around the tubef, and forming the end ofthe lever a as a pawl to engage the upper offset of the neck and supportthe tubular valve by a positive device, instead of depending onfriction. When the valve is allowed to close upon its seat there isacolumn of water in the pipe below the valve, andthis runs down rapidlyinto the closet, and air is drawn in at the upper end of thetubularvalve-stem. In practice I found that when the tubular valve-stem.

was made parallel, or nearly so, as in my aforesaid patent, the rush ofair into this pipe produced a very disagreeable whistling noise. By

flaring the upper end of this tubular valvestem, as shown at f, theaforesaid difficulty is removed, or nearly so, as the air passes intothe pipe with but little noise. I also provide a passage-way in thecistern or a branch pipe below the same at H, uniting the pipe thatleads to the water-closet with the two valveseats. Both valves, levers,and floats are the same, except that in the valve appliances at theright in Fi 2, and designated R, the float-lever is bent so as to standat a higher elevation than the float of the left-hand appliances markedL, andthese are to be so constructed, proportioned, and arranged thatthe right-hand valve, when raised, willbe allowed to drop automaticallywhen the water has descended to a given level, (here desi nated as 10.)The float at L will still be operative, and its lever will hold up theleft-hand valve, it raised, until the water has still further descendedinthe oisterusay to the level marked 11. Hence, if the valve at R israised just before the closet is used, water willrun out of the cisternas a preliminary wash, and then automatically stopped by the valve beingdropped when the water has descended to 10, and if the valve of L israised after the closet has been used water will be allowed to run outuntil the lowest level, 11., is reached, and the valve of L will then bedropped automatically and the flow of water to the closet stopped.

I remark that, although I prefer the tubular valve-stems shown, theoperation will be the same if the valve-stems are solid; and I am notlimited to any particular kind of valve or stem or appliance for holdingthe valves up by the action of the floats or dropping the sameautomatically by the descent of such floats.

In orderto operate the valves at It and L by the movement of thewater-closet sent, or by a platform or step on the floor, or by theopening and closing of the door of the watercloset, any suitablemechanical appliance may be resorted to, as valves for closet-cisternshave heretofore received motion from such sources. I, however, preferand use the devices next described.

a is a lever upon a fulcrum, o,with a weight,

17. At the other end of the lever there is a link, 8, to the wire orchain leading to the seat or other source of motion.

Upon the lever n are double-acting latches 20, pivoted at their upperends to the lever and having catches 21 at their lower ends adapted tograsp the collar 22 at the upper end of the valve-stem. Hence, when thelink 8 is pulled upon by depressing the seat or platform, the lever n ismoved, the weight 17 lifted,- and the valve at It lifted to allow theaforesaid preliminary wash to run. Itis, however, necessary toautomatically disconnect the catches 21 as the lever and latchesapproach the end of the upward movement. This is effected by the cam-projections 23 on 20 coming in contact with the crossbar S, and moving21 away from 22, and leaving the valve R under the control of its leverand float. As the lever a is moved and the weight raised. as aforesaid,the latches (at the opposite side of the lever-fulcrum to the latches20) descend and their catches 31 come below the collar 32 of theleft-hand valve-stem L. Hence when the the closet-seat is liberated bythe person rising from the same the lever-weight falls, and by thelatches 30an'd catches 31 the collar 32 and its valve are lifted,allowing the after flow of water to take place to wash out the closet,the catches 31 are disengaged automatically from 32 by the cams 33 on 30coming in contact with the cross-bar S.

It is to be understood that the cross-bar S may be mortised l'orthecatches to pass through, or the cross-bar may be notched or have pins orprojections that act against the earns 23 and 33 to move the latches asthe lever reaches its extreme movement in one direction or the other.

,1 claim as my invention-- 1. The combination, with a water-closetcistern, of two valves, mechanism for raising such valves, floats, andlevers for holding up such valves and for allowing the same to dropautomatically when the water in the cistern descends to the twoditferent levels, substantially as set forth.

2. The combination, with the cistern-valve, of a stem having a neck, aguide for such stem, a float and a lever having a pawl to engage suchstem and support the valve, substantially as set forth.

3. Thecombination,inawatcr-closet cistern, of two valves, two floats,and means for bolding up the valves and for allowing the valves to dropautomatically at different levels of the water, a lever and weight anticatches on the lever at opposite sides of its fulcrum for alternatelyraising the valves and means for disconnecting the catches,substantially as set forth.

4. The combination, with the water-closet cistern, of a valve, a stem, aguide for the stem, latches for lifting the valve and stem, a float,lever, and pawl for holding up the valve and for allowingit to dropautomatically, substantially as specified.

5. The combination of the water-closet cistern and the valve, thetubular stem to the valve having an open flaring upper end, for thepurposes set forth.

Signed by me this 15th day of August, A. D. 1882'.

JOHN DEMAREST.

Vitnesses:

MAX GoEBEL, J OHN REID.

